Rihanna in new behind-the-scenes video - and a secret shoot

Rihanna has revealed a behind-the-scenes video of her new fashion collection - and hinted at her involvement in a new campaign.

The singer has shared some backstage action of her debut range for River Island and can be seen dressing models and discussing designs.

The 24-year-old singer said: "I have been wanting to design my own fashion line for a very long time. This has been something I have wanted to do ever since I started loving fashion.

"My style is inspired by my mood. This collection will definitely have a range of different moods, different attitudes because I'm assuming my fans will be the same way.

"The collection is casual, it's chic, it's flirty... I wanted all types of girls to be able to wear this and feel comfortable but edgy. I wanted there to be character within the clothes, but without it trying too hard. It's just simple."

Speaking about the show, she said: "Launching at London Fashion Week is a dream come true for me. I have wanted to design my own collection for a long time and to present my collection for River Island alongside all of the other great design talent at LFW is a real privilege.

"I can't wait to see the reaction from my fans and the fashion press!"

She has just posted a photo of herself on Instagram looking as sultry as ever, reading: "And that's a #wrap on my shoot for my new #topsecret add campaign!!! #2013."